ng-confirm | Simple confirm button for angular | Frontend Framework library

How can I make the primng confirmation service behave equal to the browser native confirm?

When a user clicks on a button, I need under certain conditions to request their confirmation to proceed, in case of denying it, exit the method.

The following is an example using the primeng confirmation service. The problem is that the last line of the method that calls openFile is executed without waiting for user approval.

I have a userform where you have to enter data into textboxes and then press a button to put the data into the sheet. When I'm typing into the last textbox and I'm done, I click the button and it doesn't respond. Also, I have noticed that my cursor keeps blinking inside the last textbox so I guess there's a problem there (while focused not able to click a button)?

In total I have 4 textboxes, 3 of them use data validation after their value has been updated. The last one does not have data validation.

The weird thing is that, next to the "next button", I have a button to clear the fields and that one works just fine. Below an image from my userform with a little bit of explanation because it's in another language (Dutch). Can anyone help me? Thanks!

The code used for the "next" button is:

Note: the data gets validated not only when they updated the value of the textbox, but also an extra time when they click the next button.

I have a function which executes some operations in the "accept" call of PrimeNg Confirmation service. I tried to write a Unit test case for it as following: